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Finding the Fourth Proportional to 19,326.88, 26,671.44 and 10,945.12

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Solution

The fourth proportional to 19,326.88, 26,671.44 and 10,945.12 is: 15,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.88 : 26,671.44 = 10,945.12 : x
  2. Step 2: Convert to fraction form
    19,326.88/26,671.44 = 10,945.12/x
  3. Step 3: Cross multiply
    19,326.88x = 26,671.44 × 10,945.12
  4. Step 4: Simplify right side
    19,326.88x = 291,922,111.37
  5. Step 5: Solve for x
    x = 291,922,111.37/19,326.88
  6. Step 6: Final answer
    x = 15,104.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.